Question.
Why %% and #* ?
Please explain this line.
those are shell's string operations.
%% deletes the longest part whenever pattern matches at the end.
# deletes the shortest part whenever pattern matched at the beginning.
this is just a short explanation.
agree with that you need to look at the man pages for details.
How can I grep for a certain letter that only shows on the 3rd letter or character.
ex:
ASGHDY
SHTYRD
SDTYRD
IGIKGD
I only want the TY part of the 3rd character
so output would only be SHTYRD and DDTYRD - I only want the TY on the 3rd character.
THANKS (5 Replies)
Hi
I would like to accept in a string from user like
username/pwd@dbname
suppose the user does not input @ then i should throw an error that @ symbol missing . How to achieve this
Thanks in advance
Suresh (6 Replies)
hello,
How to parse a file to see if a specific line is commented by '#' character?
filename: file1
cat file1
...
# /usr/bin/whatever
...
thank you (9 Replies)
Hi,
For example, i have a string
"123 456 789 abc 111 222 333"
and I would like to delete all the characters before abc so that it becomes
"abc 111 222 333"
how can i do that in unix? using sed?
note: I actually don't know how many words/charachters before "abc", so the "cut"... (9 Replies)
Friends, I'm looking for a command that delete the first tho caractere in a word. Here is an exp :
I want to replace "20091001" by "091001"
or "replace" by "place"
Thx, (13 Replies)
Hi all,
I have a file with some module names as below.
Font::AFM
Data::Grove ---> libxml-perl
Net::LDAP ---> perl-ldap
DBI
XML
....
...
....
and so on ...
The file has some lines with the character " -->" .
Now how can I cut only the last column of the line wherever "-->" is... (4 Replies)
Hi Expert,
I would like to know on how to export only the first 6 character of below
0050569868B7
ABCDEFGHTY
to
005056
ABCDEF
Thank you.
Reggy (7 Replies)
Hi friends,
I am working in a korn shell. i want to know the command which gives me the previous one character and next one character of a given keyword in a string?
for exmaple:
input string: /bin/dir/folder1/.proc_name^folderone
Keyword: proc_name
output : .^
... (10 Replies)
How can I represent the position of 1 (considering only the 1s after the colon) in the word from field5 and above; counting from right to left.
Input:
TT-124 06-03-14 08-02-10 FAS CAT1:10
TT-125-1 05-03-14 10-06-08 CAS CAT2:1010 FAT1:10000
TT-125-3 07-03-14 11-02-06 FAS FAT1:1101... (6 Replies)
Hi,
I have a file which looks like this
id integer,
name string,
create_dt date,
I want to remove all words that are present before the character ,
My output should be
id,
name,
create_dt,
Thanks
wah (2 Replies)
Discussion started by: wahi80
2 Replies
LEARN ABOUT BSD
fnmatch
FNMATCH(3) Linux Programmer's Manual FNMATCH(3)NAME
fnmatch - match filename or pathname
SYNOPSIS
#include <fnmatch.h>
int fnmatch(const char *pattern, const char *string, int flags);
DESCRIPTION
The fnmatch() function checks whether the string argument matches the pattern argument, which is a shell wildcard pattern.
The flags argument modifies the behavior; it is the bitwise OR of zero or more of the following flags:
FNM_NOESCAPE
If this flag is set, treat backslash as an ordinary character, instead of an escape character.
FNM_PATHNAME
If this flag is set, match a slash in string only with a slash in pattern and not by an asterisk (*) or a question mark (?)
metacharacter, nor by a bracket expression ([]) containing a slash.
FNM_PERIOD
If this flag is set, a leading period in string has to be matched exactly by a period in pattern. A period is considered to be
leading if it is the first character in string, or if both FNM_PATHNAME is set and the period immediately follows a slash.
FNM_FILE_NAME
This is a GNU synonym for FNM_PATHNAME.
FNM_LEADING_DIR
If this flag (a GNU extension) is set, the pattern is considered to be matched if it matches an initial segment of string which is
followed by a slash. This flag is mainly for the internal use of glibc and is implemented only in certain cases.
FNM_CASEFOLD
If this flag (a GNU extension) is set, the pattern is matched case-insensitively.
FNM_EXTMATCH
If this flag (a GNU extension) is set, extended patterns are supported, as introduced by 'ksh' and now supported by other shells.
The extended format is as follows, with pattern-list being a '|' separated list of patterns.
'?(pattern-list)'
The pattern matches if zero or one occurrences of any of the patterns in the pattern-list match the input string.
'*(pattern-list)'
The pattern matches if zero or more occurrences of any of the patterns in the pattern-list match the input string.
'+(pattern-list)'
The pattern matches if one or more occurrences of any of the patterns in the pattern-list match the input string.
'@(pattern-list)'
The pattern matches if exactly one occurrence of any of the patterns in the pattern-list match the input string.
'!(pattern-list)'
The pattern matches if the input string cannot be matched with any of the patterns in the pattern-list.
RETURN VALUE
Zero if string matches pattern, FNM_NOMATCH if there is no match or another nonzero value if there is an error.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+----------+---------------+--------------------+
|Interface | Attribute | Value |
+----------+---------------+--------------------+
|fnmatch() | Thread safety | MT-Safe env locale |
+----------+---------------+--------------------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008, POSIX.2. The FNM_FILE_NAME, FNM_LEADING_DIR, and FNM_CASEFOLD flags are GNU extensions.
SEE ALSO sh(1), glob(3), scandir(3), wordexp(3), glob(7)COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU 2015-12-28 FNMATCH(3)